Transmitting and receiving same-element and anti-phase microwave detection module

Abstract

The present invention discloses a transceiver co - element in - phase - inversion microwave detection module. The transceiver co - element in - phase - inversion microwave detection module includes a reference ground and at least one radiation element. Each of the radiation elements is spaced from the reference ground. Each of the radiation elements has an electrical feeding point for accessing an excitation signal and another electrical feeding point for outputting an echo signal. The physical center point of the radiation element is located on the line connecting the two electrical feeding points and between the two electrical feeding points on the line connecting the two electrical feeding points. In the state where the radiation element is excited by accessing the excitation signal, the echo signal output from the radiation element can be in - phase - inversion. That is, while realizing the in - phase - inversion of the excitation signal and the echo signal, the number of the radiation elements is allowed to be set to one, thereby ensuring the accuracy of the transceiver co - element in - phase - inversion microwave detection module and adapting to the current miniaturization trend.

Description

Technical Field

[0001] The present invention relates to the field of microwave detection, and particularly to a transceiver co-element in-phase reverse microwave detection module for microwave detection based on the Doppler effect principle. Background Art

[0002] With the development of Internet of Things technology, the requirements for environmental detection in artificial intelligence, smart home, and intelligent security technologies, especially for the detection accuracy of the presence, movement, and micro-movement characteristics of people, are getting higher and higher. Only by obtaining sufficiently stable detection results can accurate judgment bases be provided for intelligent terminal devices. Among them, radio technology, including microwave detection technology based on the Doppler effect principle, as an important hub for connecting people and things, and things and things, has unique advantages in behavior detection and presence detection technologies. It can detect moving objects, such as the movement characteristics, movement characteristics, and micro-movement characteristics of people, and even the heartbeat and breathing characteristic information of people without infringing on people's privacy, so it has broad application prospects.

[0003] Furthermore, in the ISM band (Industrial, Scientific and Medical band) defined by ITU-R (ITU Radiocommunication Sector) and open for use by institutions such as industry, science, and medicine without authorization, the frequency bands applied to microwave detection mainly include limited frequency band resources such as 2.4 GHz, 5.8 GHz, 10.525 GHz, and 24.125 GHz. And the corresponding microwave detectors need to comply with a certain transmit power (generally the transmit power is below 1 W) when using these frequency bands to reduce interference to other radio devices. Although the definition and permission of different frequency bands can standardize the used frequency bands of radio and reduce the probability of mutual interference between radio devices in different frequency bands, under the limited frequency band resource permission, with the rapid development of Internet of Things technology and the rapid increase in the radio usage coverage rate of adjacent or the same frequency bands, the problem of mutual interference between radios in adjacent or the same frequency bands is becoming increasingly serious. And with the people-oriented intelligent competition, the demand for accurate detection of human motion characteristics including breathing motion and even heartbeat motion has also increased rapidly. Therefore, anti-interference performance, as one of the influencing factors for measuring the accuracy of the corresponding microwave detection module, in the context of the increasingly serious problem of mutual interference between radios, it is difficult to maintain the accuracy of the existing microwave detection module, let alone improve it to meet the demand for accurate detection of human motion characteristics including breathing motion and even heartbeat motion.

[0004] Specifically, among the existing microwave detection modules, the microwave detection module using a patch antenna structure design is more delicate in the feedback of human activities and is relatively popular. Among them, it is further divided into a transceiver integrated design and a transceiver separated design according to the corresponding Figure 1A andFigure 1B As shown Figure 1A and 1B respectively illustrate a structure of an existing microwave detection module adopting a transceiver-integrated design and a transceiver-separated design. The existing microwave detection module adopting the transceiver-integrated design includes a reference ground 10P and a radiation source 20P. The radiation source 20P includes at least one radiation element 21P. Each of the radiation elements 21P is spaced from the reference ground 10P in a state tending to be parallel. Each of the radiation elements 21P is provided with and has only one feeding point 211P. Each of the radiation elements 21P is fed at its feeding point 211P to emit a microwave beam corresponding to the frequency of the corresponding excitation signal and interact with the reference ground 10P, and receive a reflected echo formed by the reflection of the microwave beam by a corresponding object, and transmit an echo signal corresponding to the frequency of the reflected echo at the feeding point 211P, so as to generate a Doppler intermediate frequency signal corresponding to the frequency difference between the excitation signal and the echo signal by means of mixing and detection based on the Doppler effect principle in the subsequent stage. The Doppler intermediate frequency signal is a feedback on the activity of the corresponding object. Since the radiation element 21P is fed and transmits the echo signal at the same point, the number of the radiation elements 21P is allowed to correspond to Figure 1AIt is set to one to adapt to the current miniaturization trend. However, on the one hand, an additional phase shifter circuit needs to be set up to meet the phase requirements for the mixing process of the excitation signal and the echo signal, which not only increases the cost but also easily causes layout congestion in the existing microwave detection module with a transceiver integrated design and is not conducive to its anti-interference performance. On the other hand, the influence between the excitation signal and the echo signal cannot be avoided, which is not conducive to the mixing process of the excitation signal and the echo signal, and correspondingly reduces the accuracy and stability of the existing microwave detection module with a transceiver integrated design. Therefore, to meet the current demand for the detection accuracy of microwave detection modules, the existing microwave detection modules with a transceiver separation design are used in more and more application scenarios. The existing microwave detection modules with a transceiver separation design include a reference ground 10P and a pair of radiation sources 20P. Each of the radiation sources 20P includes at least one radiation element 21P. Each of the radiation elements 21P is spaced from the reference ground 10P in a state tending to be parallel. Each of the radiation elements 21P is provided with and only has one feeding point 211P. One of the radiation sources 20P in a pair of the radiation sources 20P is fed at the feeding point 211P of its radiation element 21P and emits a microwave beam corresponding to the frequency of the corresponding excitation signal interactively with the reference ground 10P, and another radiation source 20P receives a reflected echo formed by the reflection of the microwave beam by a corresponding object and transmits an echo signal corresponding to the frequency of the reflected echo at the feeding point 211P of the corresponding radiation element 21P. That is, the existing microwave detection module with a transceiver separation design is fed at the feeding point 211P of the radiation element 21P of one of the radiation sources 20P in a pair of the radiation sources 20P and transmits the echo signal at the feeding point 211P of the radiation element 21P of the other radiation source 20P to ensure the detection accuracy in a transceiver separation manner. However, since the number of the radiation elements 21P is required to be at least two, and further an isolation ground 30P needs to be set up between a pair of the radiation sources 20P to reduce the mutual influence between a pair of the radiation sources 20P and ensure the anti-interference performance and stability of the existing microwave detection module with a transceiver separation design, the existing microwave detection module with a transceiver separation design is difficult to adapt to the current miniaturization trend.

[0005] In summary, the current microwave detection module is difficult to adapt to the current miniaturization trend while meeting the current demand for detection accuracy. Summary of the Invention

[0006] An object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module, in which the radiation element is fed with an excitation signal at different points of the same radiation element and the corresponding echo signal is received from the radiation element, so as to allow the number of radiation elements to be set to one while achieving the in - phase - opposite of the excitation signal and the echo signal, thereby ensuring the accuracy of the transceiver co - element in - phase - opposite microwave detection module and adapting to the current miniaturization trend.

[0007] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module, in which the radiation element is equivalently provided with two electrical feeding points, and the physical center point of the radiation element is located on the line connecting the two electrical feeding points and between the two electrical feeding points on the line connecting the two electrical feeding points. In this way, in the state where the radiation element is fed with the excitation signal at one of the electrical feeding points, the echo signal in - phase - opposite to the excitation signal can be transmitted from the other electrical feeding point of the radiation element, so as to allow the number of radiation elements to be set to one while achieving the in - phase - opposite of the excitation signal and the echo signal.

[0008] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module, in which the in - phase - opposite of the excitation signal and the echo signal avoids the setting of a phase - shifting circuit, which simplifies the circuit design of the transceiver co - element in - phase - opposite microwave detection module and is beneficial to improving the stability and consistency of the transceiver co - element in - phase - opposite microwave detection module.

[0009] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module, in which in the state where the radiation element is fed with the excitation signal at one of the electrical feeding points, the echo signal in - phase - opposite to the excitation signal can be transmitted from the other electrical feeding point of the radiation element, avoiding being fed and transmitting the echo signal at the same point, which is beneficial to reducing the mutual influence between the excitation signal and the echo signal, and correspondingly improving the accuracy and stability of the transceiver co - element in - phase - opposite microwave detection module.

[0010] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module, in which the number of radiation elements of the transceiver co - element in - phase - opposite microwave detection module is one, so as to adapt to the current miniaturization trend while achieving the in - phase - opposite of the excitation signal and the echo signal and ensuring the accuracy of the transceiver co - element in - phase - opposite microwave detection module.

[0011] Another object of the present invention is to provide a transceiver co - element in - phase - inversion microwave detection module, wherein the number of the radiating elements of the transceiver co - element in - phase - inversion microwave detection module is at least two. Taking the straight line passing through the physical center point of the radiating element and perpendicular to the connection line of the two electrical feeding points on the radiating element as the zero - potential line of the radiating element, and each of the radiating elements is adjacently arranged in a state where the zero - potential lines coincide. Each of the electrical feeding points of each of the radiating elements on the same side of the zero - potential line is electrically connected, that is, each of the radiating elements is adjacently arranged in a state where the zero - potential lines coincide in the same polarization direction, so as to improve its gain while maintaining the planar beam angle of the transceiver co - element in - phase - inversion microwave detection module in the polarization direction, thus being beneficial to improving the detection sensitivity of the transceiver co - element in - phase - inversion microwave detection module.

[0012] Another object of the present invention is to provide a transceiver co - element in - phase - inversion microwave detection module, wherein the number of the radiating elements of the transceiver co - element in - phase - inversion microwave detection module is two. The two radiating elements are adjacently arranged in a state where the two zero - potential lines coincide. The two electrical feeding points of the two radiating elements on the same side of the zero - potential line are electrically connected, that is, the two radiating elements are adjacently arranged in a state where the zero - potential lines coincide in the same polarization direction. Thus, under the limitation of the same number of radiating elements, the transceiver co - element in - phase - inversion microwave detection module has higher gain and smaller volume compared with the existing microwave detection module with separated transceiver design.

[0013] Another object of the present invention is to provide a transceiver co - element in - phase - inversion microwave detection module, wherein the number of the radiating elements of the transceiver co - element in - phase - inversion microwave detection module is two. The two radiating elements are adjacently arranged in a state where the two zero - potential lines are perpendicular to each other, that is, the two radiating elements have polarization directions in an orthogonal state. Thus, under the limitation of the same number of radiating elements, the transceiver co - element in - phase - inversion microwave detection module has higher gain and smaller volume compared with the existing microwave detection module with separated transceiver design.

[0014] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module, wherein the number of the radiating elements of the transceiver co - element in - phase - opposition microwave detection module is at least two, and each of the radiating elements is adjacently arranged in a state where the connection line of the two electrical feeding points of each radiating element coincides, that is, each of the radiating elements is adjacently arranged in a state where the electrical feeding points are located on the same straight line, and two mutually adjacent electrical feeding points on two adjacent radiating elements are electrically connected, that is, two mutually adjacent electrical feeding points located on different radiating elements among two adjacent radiating elements are electrically connected. Each of the radiating elements is adjacently arranged in a state where the electrical feeding points are located on the same straight line in the same polarization direction, so as to improve the gain of the transceiver co - element in - phase - opposition microwave detection module. And under the limitation of the same number of radiating elements, the transceiver co - element in - phase - opposition microwave detection module has a smaller volume compared with the existing microwave detection module with a transceiver - separated design.

[0015] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module. In a state where the physical center point of the radiating element is located on the connection line of the two electrical feeding points and between the two electrical feeding points on the connection line of the two electrical feeding points, the two electrical feeding points of the radiating element are symmetric with respect to the physical center point of the radiating element. Thus, in a state where the radiating element is fed by the excitation signal at one of the electrical feeding points, it is beneficial to maintain the stability of the echo signal transmitted from the other electrical feeding point of the radiating element and ensure that the echo signal is in - phase - opposition to the excitation signal.

[0016] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module. In a state where the radiating element is fed by connecting one of the electrical feeding points to one pole of the excitation signal, the physical center point of the radiating element is connected to the other pole of the excitation signal, and a closed - loop circuit for the excitation signal is formed between one of the electrical feeding points of the radiating element and the physical center point of the radiating element, so as to reduce the polarization balance mismatch caused by the design and processing errors of the radiating element, thereby being beneficial to ensuring the working stability of the transceiver co - element in - phase - opposition microwave detection module.

[0017] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module. In a state where the radiating element is fed by connecting one of the electrical feeding points to one pole of the excitation signal, by forming a closed - loop circuit for the excitation signal between one of the electrical feeding points of the radiating element and the physical center point of the radiating element, the impedance of the transceiver co - element in - phase - opposition microwave detection module at a frequency deviating from the resonant operating point is reduced, and the bandwidth of the transceiver co - element in - phase - opposition microwave detection module is narrowed, which is beneficial to improving the anti - interference performance of the transceiver co - element in - phase - opposition microwave detection module.

[0018] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module. The transceiver co - element in - phase - opposition microwave detection module includes a reference ground. In a state where the radiation element is fed by connecting one pole of the excitation signal to one of the electrical feeding points, the reference ground is connected to the other pole of the excitation signal. The radiation element is electrically connected to the reference ground through a metallized via structure at the physical center point of the radiation element, so as to form a closed - loop circuit for the excitation signal between one of the electrical feeding points of the radiation element and the physical center point of the radiation element. Thus, it is simple and feasible and will not cause congestion in the circuit layout, which is beneficial to improving the anti - interference performance of the transceiver co - element in - phase - opposition microwave detection module while ensuring the stability of the transceiver co - element in - phase - opposition microwave detection module and adapting to the current miniaturization trend.

[0019] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module. The description of the position of the electrical feeding point is a limitation on the electrical equivalent feeding position of the radiation element. The physical implementation structures of the entity physical feeding of the electrical feeding point are diverse, and the entity physical feeding structures corresponding to the two electrical feeding points of the same radiation element are not restricted to be the same. Therefore, the circuit design of the corresponding transceiver co - element in - phase - opposition microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0020] Another object of the present invention is to provide a transceiver co - element in - phase - opposition microwave detection module. Based on the transceiver reciprocity principle, the electrical feeding point corresponding to the access of the excitation signal and the electrical feeding point corresponding to the output of the echo signal can be interchanged. Taking the electrical feeding point corresponding to the access of the excitation signal as an example, in a state of a point - feeding (probe - feeding) structure corresponding to the electrical feeding point, when the radiation element is connected to the excitation signal at a feeding connection point on the radiation element that deviates from the physical center point of the radiation element, the electrical feeding point takes the feeding connection point. When the radiation element is connected to the excitation signal at two feeding connection points on the radiation element that deviate from the physical center point of the radiation element, the electrical equivalent feeding point of the radiation element is located at the mid - point of the line connecting the two feeding connection points, that is, the electrical feeding point takes the mid - point of the line connecting the two feeding connection points, and the positional relationship between the two feeding connection points is set such that the mid - line of the line connecting the two feeding connection points passes through the physical center point of the radiation element. That is, in a state of a point - feeding (probe - feeding) structure corresponding to the electrical feeding point, the description of the electrical connection relationship and position of the electrical feeding point is a limitation on the electrical connection relationship of the entity feeding connection point and the electrical equivalent feeding position of the radiation element. The specific number and position of the feeding connection points are flexible and variable, and the circuit design of the corresponding transceiver co - element in - phase - opposition microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0021] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module. In the state where the electrical feeding point corresponds to the microstrip feeding structure, the radiating element transmits the echo signal through a microstrip feeder line or is fed by the excitation signal. The electrical feeding point is electrically equivalent to the point on the radiating element that is electrically connected to the microstrip feeder line. That is, the description of the electrical connection relationship and position of the electrical feeding point corresponds to the electrical connection relationship and position definition of the point on the radiating element that is electrically connected to the microstrip feeder line. The physical feeding structures corresponding to the electrical feeding points are diverse, and the physical feeding structures corresponding to the two electrical feeding points of the same radiating element are not restricted to be the same. Therefore, the circuit design of the corresponding transceiver co - element in - phase - opposite microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0022] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module. In the state where the electrical feeding point corresponds to the edge - feeding structure, the radiating element transmits the echo signal through an edge feeder line or is fed by the excitation signal. The edge feeder line is a microstrip line adjacent to and parallel to the straight edge of the radiating element. The electrically equivalent feeding point of the radiating element is electrically equivalent to the mid - point of the edge feeder line set as a microstrip line. That is, the description of the electrical connection relationship and position of the electrical feeding point is the definition of the electrical connection relationship of the physical edge feeder line and the mid - point position of the edge feeder line. The specific positions where the edge feeder line accesses the excitation signal and outputs the echo signal are not limited and do not affect the definition of the position of the electrical feeding point. Therefore, the circuit design of the corresponding transceiver co - element in - phase - opposite microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0023] Another object of the present invention is to provide a transceiver co - element in - phase - opposite microwave detection module. Based on the transceiver reciprocity principle, the electrical feeding point corresponding to accessing the excitation signal and the electrical feeding point corresponding to transmitting the echo signal can be reciprocated, and the electrical feeding point on the radiating element corresponding to transmitting the echo signal is allowed to simultaneously access the excitation signal. That is, on the basis that one electrical feeding point of the radiating element corresponds to accessing the excitation signal and the other electrical feeding point corresponds to transmitting the echo signal, the two electrical feeding points of the radiating element are allowed to be set to simultaneously access the excitation signal or transmit the echo signal to form an in - phase - opposite feeding of the radiating element to improve the radiation efficiency or reception efficiency of the radiating element, and correspondingly enhance the detection sensitivity of the co - element in - phase - opposite microwave detection module.

[0024] According to one aspect of the present invention, the present invention provides a transceiver co - element in - phase - opposite microwave detection module, and the transceiver co - element in - phase - opposite microwave detection module includes:

[0025] A reference ground, wherein the reference ground is arranged as a sheet-shaped conductive layer; and

[0026] At least one radiation element, wherein each of the radiation elements is arranged as a sheet-shaped conductive layer and is respectively spaced from the reference ground in a state where the planes of the two sheet-shaped conductive layers tend to be parallel, wherein each of the radiation elements has an electrical feeding point corresponding to accessing an excitation signal and another electrical feeding point corresponding to outputting an echo signal, and the physical center point of the radiation element is located on the line connecting the two electrical feeding points and between the two electrical feeding points on the line connecting the two electrical feeding points, so that in a state where the radiation element is excited by accessing the excitation signal, the echo signal output from the radiation element can be inverted.

[0027] In one embodiment, the transceiver co-element inverting microwave detection module further includes a feed source, wherein the feed source has a positive terminal connection end, a ground terminal connection end, and a signal terminal, and is arranged to be powered when the positive terminal connection end and the ground terminal connection end are electrically connected to the positive pole and the ground pole of a corresponding power supply, and wherein when the feed source is arranged in a powered state, the excitation signal is generated between the signal terminal and the positive terminal connection end or the ground terminal connection end, and the radiation element is electrically connected to the signal terminal through a physical feed structure corresponding to one of the electrical feeding points to access the excitation signal at this electrical feeding point.

[0028] In one embodiment, when the feed source is arranged in a powered state, the excitation signal is generated between the signal terminal and the positive terminal connection end, and a straight line passing through the physical center point of the radiation element and perpendicular to the line connecting the two electrical feeding points on each radiation element is used as the zero potential line of the radiation element, and each radiation element is arranged in a fed state and is electrically connected to the positive terminal connection end of the feed source at the corresponding zero potential line.

[0029] In one embodiment, each of the radiation elements is electrically connected to the reference ground at the corresponding zero potential line, and when the radiation element is fed, the reference ground is electrically connected to the positive terminal connection end of the feed source to correspondingly form a state where each radiation element is electrically connected to the positive terminal connection end of the feed source at the corresponding zero potential line.

[0030] In one embodiment, when the feed source is arranged in a powered state, the excitation signal is generated between the signal terminal and the ground terminal connection end, and a straight line passing through the physical center point of the radiation element and perpendicular to the line connecting the two electrical feeding points on each radiation element is used as the zero potential line of the radiation element, and each radiation element is arranged in a fed state and is electrically connected to the ground terminal connection end of the feed source at the corresponding zero potential line.

[0031] In one embodiment, each of the radiating elements is electrically connected to the reference ground at the corresponding zero potential line. In the state where the radiating element is fed, the reference ground is electrically connected to the ground connection end of the feed source, so as to correspondingly form a state where each radiating element is electrically connected to the ground connection end of the feed source at the corresponding zero potential line.

[0032] In one embodiment, the number of the radiating elements is one.

[0033] In one embodiment, the two electrical feeding points of the radiating element are arranged symmetrically with respect to the physical center point of the radiating element.

[0034] In one embodiment, if a feeding connection point on the radiating element that deviates from the physical center point of the radiating element is electrically connected to the signal end of the feed source, then the electrical feeding point of the radiating element corresponding to accessing the excitation signal takes the feeding connection point accessing the excitation signal.

[0035] In one embodiment, if another feeding connection point on the radiating element that deviates from the physical center point of the radiating element outputs the echo signal, then the electrical feeding point of the radiating element corresponding to outputting the echo signal takes the feeding connection point of the echo signal.

[0036] In one embodiment, the two feeding connection points are symmetric with respect to the physical center point of the radiating element.

[0037] In one embodiment, two feeding connection points on the radiating element that deviate from the physical center point of the radiating element are simultaneously electrically connected to the signal end of the feed source, and the positional relationship between the two feeding connection points is set such that the midline of the line connecting the two feeding connection points passes through the physical center point of the radiating element. Then, the electrical feeding point of the radiating element corresponding to accessing the excitation signal takes the midpoint of the line connecting the two feeding connection points.

[0038] In one embodiment, if another feeding connection point on the radiating element that deviates from the physical center point of the radiating element outputs the echo signal, then the electrical feeding point of the radiating element corresponding to outputting the echo signal takes the feeding connection point for outputting the echo signal. The positional relationship of the corresponding three feeding connection points satisfies that the midline of the line connecting the two feeding connection points for accessing the excitation signal passes through the physical center point of the radiating element and the other feeding connection point for outputting the echo signal.

[0039] In one embodiment, two additional feed connection points that are disposed on the radiating element and deviate from the physical center point of the radiating element simultaneously output the echo signal. The positional relationship of the two additional feed connection points for outputting the echo signal is set such that the midline of the line connecting the two feed connection points passes through the physical center point of the radiating element. Then, the electrical feed point of the radiating element corresponding to outputting the echo signal is taken as the midpoint of the line connecting the two feed connection points for outputting the echo signal. The positional relationship of the four feed connection points satisfies that the midline of the line connecting the two feed connection points for accessing the excitation signal passes through the physical center point of the radiating element and the midpoint of the line connecting the two additional feed connection points for outputting the echo signal.

[0040] In one embodiment, the radiating element is electrically connected to the signal terminal of the feed source through a microstrip feed line electrically connected to the radiating element. Then, the electrical feed point of the radiating element corresponding to accessing the excitation signal is taken as the point on the radiating element that is electrically connected to the microstrip feed line.

[0041] In one embodiment, a radiating element is configured to access the excitation signal through a side feed line, and the side feed line is electrically connected to the signal terminal of the feed source. The side feed line is a microstrip line adjacent to and parallel to the straight edge of the radiating element. Then, the electrical feed point of the radiating element corresponding to accessing the excitation signal is taken as the midpoint of the side feed line configured as a microstrip line.

[0042] In one embodiment, the radiating element is configured as a rectangular sheet-shaped conductive layer.

[0043] In one embodiment, the radiating element is configured as a circular sheet-shaped conductive layer.

[0044] In one embodiment, the straight line passing through the physical center point of the radiating element and perpendicular to the line connecting the two electrical feed points on the radiating element is taken as the zero potential line of the radiating element. The two sides of the radiating element located on the zero potential line are recessed in the direction towards the physical center point of the radiating element.

[0045] In one embodiment, the number of radiating elements of the transceiver common element and in-phase microwave detection module is at least two. The straight line passing through the physical center point of each radiating element and perpendicular to the line connecting the two electrical feed points is taken as the zero potential line of the radiating element. Each radiating element is adjacently arranged with the zero potential lines coinciding. The electrical feed points of each radiating element on the same side of the zero potential line are electrically connected.

[0046] In one embodiment, each of the radiation elements is connected to the excitation signal through a microstrip feeder and outputs the echo signal through another microstrip feeder, and the microstrip feeders corresponding to each radiation element for connecting to the excitation signal are electrically connected, and the microstrip feeders corresponding to each radiation element for outputting the echo signal are electrically connected.

[0047] In one embodiment, the microstrip feeders corresponding to each radiation element for connecting to the excitation signal are set to be of equal length, and the microstrip feeders corresponding to each radiation element for outputting the echo signal are set to be of equal length.

[0048] In one embodiment, the radiation element is hollowed out along the microstrip feeder.

[0049] In one embodiment, the point on the radiation element that is electrically connected to the microstrip feeder is taken as the corresponding electrical feeding point, and the two electrical feeding points of each radiation element are set to be symmetric about the physical center point of the radiation element.

[0050] In one embodiment, each of the radiation elements is connected to the excitation signal through a side feeder and outputs the echo signal through another side feeder, where the side feeder is a microstrip line adjacent to and parallel to the straight side of the radiation element, then the midpoint of the side feeder that is set as the microstrip line is taken as the corresponding electrical feeding point, and the side feeders corresponding to each radiation element for connecting to the excitation signal are electrically connected, and the side feeders corresponding to each radiation element for outputting the echo signal are electrically connected.

[0051] In one embodiment, the number of the radiation elements is two, and the straight line passing through the physical center point of each radiation element and perpendicular to the connection line of the two electrical feeding points is taken as the zero potential line of the radiation element, and the two radiation elements are arranged adjacent to each other with the two zero potential lines perpendicular to each other.

[0052] In one embodiment, the two radiation elements are respectively connected to the excitation signal through a microstrip feeder and output the echo signal through another microstrip feeder, then the point on the radiation element that is electrically connected to the microstrip feeder is taken as the corresponding electrical feeding point, and the microstrip feeders corresponding to the two radiation elements for connecting to the excitation signal are electrically connected, and the microstrip feeders corresponding to the two radiation elements for outputting the echo signal are electrically connected.

[0053] In one embodiment, two of the radiating elements are respectively connected to the excitation signal through a side feeder and output the echo signal through the other side feeder. The side feeder is a microstrip line adjacent to and parallel to the straight side of the radiating element. The midpoint of the side feeder set as the microstrip line is taken as the corresponding electrical feeding point, and the side feeders corresponding to the two radiating elements for connecting to the excitation signal are electrically connected, and the side feeders corresponding to the two radiating elements for outputting the echo signal are electrically connected.

[0054] In one embodiment, two of the radiating elements are respectively connected to the excitation signal through a feeding connection point and output the echo signal through another electrical feeding point, then the feeding connection point is taken as the corresponding electrical feeding point.

[0055] In one embodiment, the number of the radiating elements of the transceiver same-element anti-phase microwave detection module is at least two, and each of the radiating elements is adjacently arranged in a state where the connection lines of the two electrical feeding points of each radiating element coincide, that is, the electrical feeding points of each radiating element are located on the same straight line.

[0056] In one embodiment, two adjacent radiating elements are electrically connected by a microstrip feeding line, and the points electrically connected to the microstrip feeding line on each radiating element equivalently form the corresponding electrical feeding points.

[0057] In one embodiment, each of the radiating elements is connected to the excitation signal through a microstrip feeding line electrically connected to the radiating element and outputs the echo signal through another microstrip feeding line electrically connected to the radiating element. Then the point on the radiating element electrically connected to the microstrip feeding line is taken as the corresponding electrical feeding point, and the microstrip feeding lines corresponding to each of the radiating elements for connecting to the excitation signal are electrically connected, and the microstrip feeding lines corresponding to each of the radiating elements for outputting the echo signal are electrically connected.

[0058] In one embodiment, the microstrip feeding lines corresponding to each of the radiating elements for connecting to the excitation signal are set to be of equal length, and the microstrip feeding lines corresponding to each of the radiating elements for outputting the echo signal are set to be of equal length. Description of the Drawings

[0059] Figure 1A It is a schematic structural diagram of an existing microwave detection module adopting a transceiver integrated design.

[0060] Figure 1B It is a schematic structural diagram of an existing microwave detection module adopting a transceiver separated design.

[0061] Figure 2 It is a schematic structural diagram of a transceiver same-element anti-phase microwave detection module according to an embodiment of the present invention.

[0062] Figure 3A Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to a variant embodiment of the above - mentioned embodiment of the present invention.

[0063] Figure 3B Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0064] Figure 4A Schematic diagram of a feeding structure of the transceiver co - element in - phase - opposite microwave detection module according to the above - mentioned embodiment of the present invention.

[0065] Figure 4B Schematic diagram of another feeding structure of the transceiver co - element in - phase - opposite microwave detection module according to the above - mentioned embodiment of the present invention.

[0066] Figure 5A Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0067] Figure 5B Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0068] Figure 6A Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0069] Figure 6B Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0070] Figure 6C Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0071] Figure 6D Schematic diagram of the structure of the transceiver co - element in - phase - opposite microwave detection module according to another variant embodiment of the above - mentioned embodiment of the present invention.

[0072] Figure 7A Schematic diagram of the structure of a transceiver co - element in - phase - opposite microwave detection module according to another embodiment of the present invention.

[0073] Figure 7B Schematic diagram of the structure of a transceiver co - element in - phase - opposite microwave detection module according to another embodiment of the present invention.

[0074] Figure 7C Schematic diagram of the structure of a transceiver co - element in - phase - opposite microwave detection module according to another embodiment of the present invention.

[0075] Figure 7D It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0076] Figure 8A It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0077] Figure 8B It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0078] Figure 8C It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0079] Figure 9A It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0080] Figure 9B It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0081] Figure 9C It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0082] Figure 9D It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0083] Figure 9E It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0084] Figure 9F It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention.

[0085] Figure 9G It is a schematic structural diagram of a transceiver co - element in - phase - inverse microwave detection module according to another embodiment of the present invention. Detailed implementation manners

[0086] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the present invention.

[0087] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0088] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0089] Referring to the accompanying drawings of the specification of the present invention Figures 2 to 9EAs shown, a transceiver co - element in - phase - inversion microwave detection module according to different embodiments of the present invention is schematically shown. In these embodiments of the present invention, the transceiver co - element in - phase - inversion microwave detection module includes a radiation source 20 and a reference ground 10 which is arranged as a sheet - like conductive layer. Wherein the radiation source 20 includes at least one radiation element 21 which is also arranged as a sheet - like conductive layer. Each of the radiation elements 21 is spaced from the reference ground 10 in a state where the planes of the two sheet - like conductive layers tend to be parallel. Thus, in a state where the radiation element 21 is excited and fed by a corresponding excitation signal, the radiation element 21 can interact with the reference ground 10 to emit a microwave beam corresponding to the frequency of the excitation signal, and receive a reflected echo formed by the reflection of the microwave beam by a corresponding object and output an echo signal corresponding to the frequency of the reflected echo. Then, based on the principle of the Doppler effect, a Doppler intermediate - frequency signal corresponding to the frequency / phase difference between the excitation signal and the echo signal is generated through mixing and detection. The Doppler intermediate - frequency signal is the feedback on the activity of the corresponding object. Based on the physical feeding structure of the radiation element 21 in the fed state, each of the radiation elements 21 is equivalently provided with two electrical feeding points 211. The physical center point of the radiation element 21 is located on the line connecting the two electrical feeding points 211 and between the two electrical feeding points 211 on the line connecting the two electrical feeding points 211. Thus, when the radiation element 21 accesses the excitation signal with the physical feeding structure corresponding to one of the electrical feeding points 211, and outputs the echo signal with the physical feeding structure corresponding to the other electrical feeding point 211, the echo signal output from the radiation element 21 is in antiphase with the excitation signal. That is, while realizing the antiphase of the excitation signal and the echo signal, the number of the radiation elements 21 is allowed to be set to one, which ensures the accuracy of the transceiver co - element in - phase - inversion microwave detection module and adapts to the current miniaturization trend.

[0090] It is worth mentioning that the introduction of the electrical feeding points 211 is a limitation on the electrical equivalent feeding positions of the radiation element 21. The physical feeding structures corresponding to the electrical feeding points 211 are diverse, and the physical feeding structures corresponding to the two electrical feeding points 211 of the same radiation element 21 are not restricted to be the same. Therefore, the circuit design of the corresponding transceiver co - element in - phase - inversion microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0091] Specifically, based on the principle of transceiver reciprocity, the electrical feeding point 211 corresponding to the access of the excitation signal and the electrical feeding point 211 corresponding to the output of the echo signal are reciprocal. Taking the electrical feeding point 211 corresponding to the access of the excitation signal as an example, in the state of the point feeding (probe feeding) structure corresponding to the electrical feeding point 211, when the radiation element 21 is implemented with an excitation signal access at a feeding connection point 2111 that deviates from the physical center point of the radiation element 21 on the radiation element 21, the electrical feeding point 211 is located at the feeding connection point 2111. When the radiation element 21 is implemented with an excitation signal access at two feeding connection points 2111 that deviate from the physical center point of the radiation element 21 on the radiation element 21, the electrical equivalent feeding point 211 of the radiation element 21 is located at the midpoint of the line connecting the two feeding connection points 2111, and the positional relationship between the two feeding connection points 2111 should be set such that the midline of the line connecting the two feeding connection points 2111 passes through the physical center point of the radiation element 21, that is, the electrical feeding point 211 takes the midpoint of the line connecting the two feeding connection points 2111. In the state of the microstrip feeding structure corresponding to the electrical feeding point 211, the radiation element 21 is connected to the excitation signal through a microstrip feeding line 212, where the electrical feeding point 211 of the radiation element 21 is electrically equivalent to the point on the radiation element 21 that is electrically connected to the microstrip feeding line 212. In the state of the edge feeding structure corresponding to the electrical feeding point 211, the radiation element 21 is connected to the excitation signal through an edge feeder 213, where the edge feeder 213 is a microstrip line adjacent to and parallel to the straight edge of the radiation element 21. The electrical feeding point 211 of the radiation element 21 is electrically equivalent to the midpoint of the edge feeder that is set as a microstrip line. That is, the electrical connection relationship and position description of the electrical feeding point 211 are the limitations of the electrical connection relationship of the physical edge feeder 213 and the midpoint position of the edge feeder 213. The specific position where the edge feeder 213 accesses the excitation signal or outputs the echo signal is not limited and does not affect the definition of the position of the electrical feeding point 211.

[0092] That is to say, the radiation element 21 is equivalently provided with one electrical feeding point 211 corresponding to accessing the excitation signal and another electrical feeding point 211 corresponding to outputting the echo signal. In a state where the radiation element 21 is arranged to access the excitation signal or output the echo signal in a point feeding (probe feeding) structure, when the radiation element 21 is implemented with a feeding connection point 2111 on the radiation element 21 that deviates from the physical center point of the radiation element 21 to access the excitation signal or transmit the echo signal, the feeding connection point 2111 is taken as the corresponding electrical feeding point 211. When the radiation element 21 is implemented with two feeding connection points 2111 on the radiation element 21 that deviate from the physical center point of the radiation element 21 to simultaneously access the excitation signal or output the echo signal, the positional relationship between the two feeding connection points 2111 should be set such that the midline of the line connecting the two feeding connection points 2111 passes through the physical center point of the radiation element 21, and the midpoint of the two feeding connection points 2111 is taken as the corresponding electrical feeding point 211. In a state where the radiation element 21 is arranged to access the excitation signal or output the echo signal in a microstrip feeding structure, the radiation element 21 accesses the excitation signal or outputs the echo signal through a microstrip feeding line 212, and the point on the radiation element 21 that is electrically connected to the microstrip feeding line 212 is taken as the corresponding electrical feeding point 211. In a state where the radiation element 21 is arranged to access the excitation signal or output the echo signal in an edge feeding structure, the radiation element 21 accesses the excitation signal or outputs the echo signal through an edge feeding line 213, where the edge feeding line 213 is a microstrip line adjacent to and parallel to the straight edge of the radiation element 21, and the midpoint of the edge feeding line 213 that is set as a microstrip line is taken as the corresponding electrical feeding point 211. Based on the definition of the electrical equivalent feeding position of the above physical feeding structure, in a state where the physical center point of the radiation element 21 is located on the line connecting the two electrical feeding points 211 and between the two electrical feeding points 211 on the line connecting the two electrical feeding points 211, when the radiation element 21 accesses the excitation signal with the physical feeding structure corresponding to one of the electrical feeding points 211 and outputs the echo signal with the physical feeding structure corresponding to the other electrical feeding point 211, the echo signal output from the radiation element 21 is in antiphase with the excitation signal. Therefore, the physical feeding structures corresponding to the electrical feeding points 211 are diverse, and the physical feeding structures corresponding to the two electrical feeding points of the same radiation element 21 are not restricted to be the same. Therefore, the circuit design of the corresponding transceiver same-element antiphase microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0093] It is worth mentioning that in these embodiments of the present invention, when the physical center point of the radiation element 21 is located on the line connecting the two electrical feeding points 211 and is between the two electrical feeding points on the line connecting the two electrical feeding points 211, the two electrical feeding points 211 of the radiation element 21 are preferably arranged symmetrically with respect to the physical center point of the radiation element 21, so that in the state where the radiation element 21 is fed by accessing the excitation signal through the physical feeding structure corresponding to one of the electrical feeding points 211, it is beneficial to maintain the stability of the echo signal output from the other electrical feeding point 211 of the radiation element 21 and ensure that the echo signal is out of phase with the excitation signal.

[0094] Furthermore, taking the straight line passing through the physical center point of the radiation element 21 and perpendicular to the line connecting the two electrical feeding points 211 on the radiation element 21 as the zero potential line of the radiation element, in these embodiments of the present invention, in the state where the radiation element 21 is fed by accessing the excitation signal through the physical feeding structure corresponding to one of the electrical feeding points 211, the radiation element 21 is preferably arranged to access the other pole of the excitation signal on the zero potential line, and a closed-loop circuit for the excitation signal is formed between this electrical feeding point 211 of the radiation element 21 and the zero potential line of the radiation element 21, so as to reduce the polarization balance mismatch caused by the design and processing errors of the radiation element 21, thereby being beneficial to ensuring the working stability of the transceiver same-element in-phase microwave detection module.

[0095] It is worth mentioning that in the state where the radiation element 21 is fed by accessing the excitation signal through the physical feeding structure corresponding to one of the electrical feeding points 211, by forming a closed-loop circuit for the excitation signal between this electrical feeding point 211 of the radiation element 21 and the zero potential line of the radiation element 21, the impedance of the transceiver same-element in-phase microwave detection module at frequencies deviating from the resonant operating point can be reduced, and the corresponding frequency band width of the transceiver same-element in-phase microwave detection module is narrowed, which is beneficial to improving the anti-interference performance of the transceiver same-element in-phase microwave detection module.

[0096] Preferably, in the state where the radiation element 21 is fed by accessing the excitation signal through the physical feeding structure corresponding to one of the electrical feeding points 211, the radiation element 21 is arranged to access the other pole of the excitation signal at the physical center point of the radiation element 21.

[0097] Specifically, the transceiver co-element anti-phase microwave detection module further includes a feed source 30, wherein the feed source 30 is configured to be powered by a corresponding power supply to generate the excitation signal. Specifically, the feed source 30 is a three-port functional circuit unit having a positive terminal 31, a ground terminal 32, and a signal terminal 33. The radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through a physical feed structure corresponding to one of the electrical feeding points 211. When the feed source 30 is respectively electrically connected to the positive terminal and the ground terminal of the corresponding power supply and is powered, when the feed source 30 is arranged to generate the excitation signal between the positive terminal 31 and the signal terminal 33, the positive pole of the excitation signal corresponds to the positive terminal 31 of the feed source 30 electrically connected to the positive pole of the corresponding power supply, and the ground pole of the excitation signal corresponds to the signal terminal 33 of the feed source 30; when the feed source 30 is arranged to generate the excitation signal between the ground terminal 32 and the signal terminal 33, the positive pole of the excitation signal corresponds to the signal terminal 213 of the feed source 30, and the ground pole of the excitation signal corresponds to the ground terminal 212 of the feed source 30 electrically connected to the ground pole of the corresponding power supply. The specific circuit form of the feed source 30 is not limited. In some embodiments of the present invention, the feed source 30 is implemented as a corresponding oscillation circuit, and in some other embodiments of the present invention, the feed source 30 is implemented as a corresponding microwave chip having a transmitting end corresponding to the signal terminal 33. The present invention does not limit this.

[0098] That is to say, when the feed source 30 is respectively electrically connected to the positive terminal 31 and the ground terminal 32 of the corresponding power supply and is powered, when the feed source 30 is arranged to generate the excitation signal between the positive terminal 31 and the signal terminal 33, the radiation element 21 is electrically connected to the signal terminal 33 through a physical feed structure corresponding to one of the electrical feeding points 211 to access the ground pole of the excitation signal, and the zero-potential line of the radiation element 21 accesses the positive pole of the excitation signal and is electrically connected to the positive pole of the corresponding power supply, corresponding to being electrically connected to the positive terminal 31 of the feed source 30; when the feed source 30 is arranged to generate the excitation signal between the ground terminal 32 and the signal terminal 33, the radiation element 21 is electrically connected to the signal terminal 33 through a physical feed structure corresponding to one of the electrical feeding points 211 to access the positive pole of the excitation signal, and the zero-potential line of the radiation element 21 accesses the ground pole of the excitation signal and is electrically connected to the ground pole of the corresponding power supply, corresponding to being electrically connected to the ground terminal 32 of the feed source 30.

[0099] It is worth mentioning that, when the feed 30 is electrically connected to the positive electrode connection terminal 31 and the ground electrode connection terminal 32 respectively and is powered by the positive electrode and the ground electrode of the corresponding power supply, the reference ground 10 is electrically connected to the positive electrode or the ground electrode of the corresponding power supply. Specifically, in the state where the reference ground 10 is electrically connected to the positive electrode of the corresponding power supply, when the feed 30 is arranged to generate the excitation signal between the positive electrode connection terminal 31 and the signal terminal 33, the radiation element 21 on the zero potential line is preferably electrically connected to the positive electrode of the corresponding power supply in a state of being electrically connected to the reference ground 10 to access the positive electrode of the excitation signal, so as to be suitable for forming the electrical connection relationship between the radiation element 21 on the zero potential line and the reference ground 10 through the metallized via structure and process. Therefore, it is simple and easy to implement and will not cause congestion in the circuit layout, which is beneficial to ensuring the consistency and stability of the transceiver co-element in-phase microwave detection module; among them, in the state where the reference ground 10 is electrically connected to the ground electrode of the corresponding power supply, when the feed 30 is arranged to generate the excitation signal between the ground electrode connection terminal 32 and the signal terminal 33, the radiation element 21 on the zero potential line is preferably electrically connected to the ground electrode of the corresponding power supply in a state of being electrically connected to the reference ground 10 to access the ground electrode of the excitation signal, so as to be suitable for forming the electrical connection relationship between the radiation element 21 on the zero potential line and the reference ground 10 through the metallized via structure and process. Therefore, it is simple and easy to implement and will not cause congestion in the circuit layout, which is beneficial to ensuring the consistency and stability of the transceiver co-element in-phase microwave detection module.

[0100] It can be understood that, based on the definition of the electrical equivalent feeding position of the foregoing physical entity feeding structure, the physical entity feeding implementation structures of the electrical feeding points 211 are diverse, and the physical entity feeding structures corresponding to the two electrical feeding points 211 of the same radiation element 21 are not limited to be the same. At the same time, the number and shape of the radiation elements 21 are set flexibly and diversely, and the circuit design and structure design of the corresponding transceiver co-element in-phase microwave detection module are flexible and diverse and can adapt to different requirements.

[0101] Referring to Figure 2 as shown in the accompanying drawings of the specification of the present invention, in the state of point feeding (probe feeding) structure corresponding to the electrical feeding point 211 and the number of the radiation elements 21 being one, the structure of a transceiver co-element in-phase microwave detection module according to an embodiment of the present invention is schematically shown. In this embodiment of the present invention, the radiation element 21 is set as a rectangular sheet-shaped conductive layer, and the connection line of the two electrical feeding points 211 is perpendicular to two opposite sides of the radiation element 21.

[0102] It is worth mentioning that, in this embodiment of the present invention, the number of the radiation elements 21 of the transceiver co-element in-phase microwave detection module is one, so as to adapt to the current miniaturization trend while realizing the inversion of the excitation signal and the echo signal to ensure the accuracy of the transceiver co-element in-phase microwave detection module.

[0103] Specifically, in this embodiment of the present invention, the excitation signal is accessed at one of the feed connection points 2111 on the radiation element 21 that deviates from the physical center point of the radiation element 21, and the echo signal is transmitted at the other feed connection point 2111, that is, the two feed connection points 2111 are taken as the corresponding two electrical feed points 211. Then, based on the fact that the physical center point of the radiation element 21 is located on the line connecting the two electrical feed points 211 and is located between the two electrical feed points on the line connecting the two electrical feed points, the line connecting the two feed connection points 2111 passes through the physical center point of the radiation element 21.

[0104] Corresponding to the foregoing description, in this embodiment of the present invention, the two electrical feed points 211 of the radiation element 21 are arranged symmetrically with respect to the physical center point of the radiation element 21, so as to maintain the stability of the echo signal output from the other electrical feed point 211 of the radiation element 21 and ensure the inversion of the echo signal and the excitation signal in the state where the radiation element 21 is fed with the excitation signal through the physical feed structure corresponding to one of the electrical feed points 211.

[0105] Further referring to FIGS. Figure 3A and Figure 3B shown in the specification drawings of the present invention, in the state of the point feed (probe feed) structure corresponding to the electrical feed point 211, based on the number setting of the feed connection points 2111, different deformation embodiments of the transceiver co-element in-phase microwave detection module corresponding to the embodiments shown in Figure 2 are respectively illustrated.

[0106] Corresponding to Figure 3AThe co-element in-phase and anti-phase microwave detection module shown schematically, where two feeding connection points 2111 on the radiating element 21 that deviate from the physical center point of the radiating element 21 are simultaneously connected to the excitation signal, and another feeding connection point 2111 on the radiating element 21 that deviates from the physical center point of the radiating element 21 outputs the echo signal. The positional relationship of the two feeding connection points 2111 for connecting the excitation signal is set such that the midline of the line connecting the two feeding connection points 2111 passes through the physical center point of the radiating element 21. Then, for the electrical feeding point 211 corresponding to connecting the excitation signal, the midpoint of the two feeding connection points 2111 for connecting the excitation signal is taken. For the electrical feeding point 211 corresponding to outputting the echo signal, the other feeding connection point 2111 for outputting the echo signal is taken. Based on the position relationship that the physical center point of the radiating element 21 is located on the line connecting the two electrical feeding points 211 and is between the two electrical feeding points 211 on the line connecting the two electrical feeding points 211, the positional relationship of the three feeding connection points 2111 satisfies that the midline of the line connecting the two feeding connection points 2111 for connecting the excitation signal passes through the physical center point of the radiating element 21, and the midline of the line connecting the two feeding connection points 2111 for connecting the excitation signal passes through the other feeding connection point 2111 for outputting the echo signal.

[0107] It is worth mentioning that, based on the principle of reciprocity of transceiver, the electrical feeding point 211 corresponding to connecting the excitation signal and the electrical feeding point 211 corresponding to outputting the echo signal can be interchanged. That is to say, corresponding to Figure 3A In the co-element in-phase and anti-phase microwave detection module shown schematically, the electrical connection relationship between the two feeding connection points 2111 for connecting the excitation signal and the other feeding connection point 2111 for outputting the echo signal can be interchanged. Correspondingly, the two original feeding connection points 2111 for connecting the excitation signal are used to output the echo signal, and the other original feeding connection point 2111 for outputting the echo signal is used to connect the excitation signal, where the positional relationship of the three feeding connection points 2111 remains unchanged.

[0108] Corresponding to Figure 3BThe co - element in - phase - opposite microwave detection module shown schematically, on the radiation element 21, two feed connection points 2111 that deviate from the physical center point of the radiation element 21 are simultaneously connected to the excitation signal, and on the radiation element 21, another two feed connection points 2111 that deviate from the physical center point of the radiation element 21 simultaneously output the echo signal. Among them, the positional relationship of the two feed connection points 2111 for connecting the excitation signal is set such that the mid - line of the line connecting the two feed connection points 2111 passes through the physical center point of the radiation element 21. Then, for the electrical feed point 211 corresponding to connecting the excitation signal, the mid - point of the two feed connection points 2111 for connecting the excitation signal is taken. Among them, the positional relationship of the other two feed connection points 2111 for outputting the echo signal is set such that the mid - line of the line connecting the two feed connection points 2111 passes through the physical center point of the radiation element 21. Then, for the electrical feed point 211 corresponding to outputting the echo signal, the mid - point of the two feed connection points 2111 for outputting the echo signal is taken. Among them, based on the fact that the physical center point of the radiation element 21 is located on the line connecting the two electrical feed points 211 and is located between the two electrical feed points 211 on the line connecting the two electrical feed points 211, the positional relationship of the four feed connection points 2111 satisfies that the mid - line of the line connecting the two feed connection points 2111 for connecting the excitation signal passes through the mid - point of the line connecting the other two feed connection points 2111 for outputting the echo signal.

[0109] Further referring to FIGS. Figure 4A and Figure 4B shown, corresponding to Figure 2 shown schematically, two feed structures of the transceiver co - element in - phase - opposite microwave detection module of the embodiment are shown. In these two feed structures of the transceiver co - element in - phase - opposite microwave detection module of this embodiment of the present invention, corresponding to the foregoing description, in the state where the radiation element 21 is fed with the excitation signal through the physical feed structure corresponding to one of the electrical feed points 211, the radiation element 21 is set to connect the other pole of the excitation signal to the zero - potential line, and a closed - loop circuit for the excitation signal is formed between this electrical feed point 211 of the radiation element 21 and the zero - potential line of the radiation element 21.

[0110] Specifically, corresponding to Figure 4A, the radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through one of the feed connection points 2111. When the feed source 30 is respectively electrically connected to the positive terminal and the ground terminal of the corresponding power supply and is powered, the feed source 30 is arranged to generate the excitation signal between the positive terminal connection end 31 and the signal terminal 33. Then, the positive pole of the excitation signal corresponds to the positive terminal connection end 31 of the feed source 30 that is electrically connected to the positive pole of the corresponding power supply. The radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through one of the feed connection points 2111 to access the ground pole of the excitation signal, and the zero potential line of the radiation element 21 is electrically connected to the positive pole of the corresponding power supply to access the positive pole of the excitation signal, so as to form a closed-loop circuit for the excitation signal.

[0111] Further, in this feed structure of the transceiver co-element and anti-phase microwave detection module of this embodiment of the present invention, when the feed source 30 is respectively electrically connected to the positive terminal and the ground terminal of the corresponding power supply and is powered, the reference ground 10 is electrically connected to the positive pole of the corresponding power supply. The radiation element 21 is electrically connected to the positive pole of the corresponding power supply in a state of being electrically connected to the reference ground 10 through the zero potential line to access the positive pole of the excitation signal, and specifically, the electrical connection relationship between the radiation element 21 and the reference ground 10 is formed through the metallized via structure and process at the physical center point of the radiation element 21.

[0112] Corresponding to Figure 4B , the radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through one of the feed connection points 2111. When the feed source 30 is respectively electrically connected to the positive terminal and the ground terminal of the corresponding power supply and is powered, the feed source 30 is arranged to generate the excitation signal between the ground terminal connection end 32 and the signal terminal 33. Then, the positive pole of the excitation signal corresponds to the signal terminal of the feed source 30, and the ground pole of the excitation signal corresponds to the ground terminal connection end 32 of the feed source 30 that is electrically connected to the ground pole of the corresponding power supply. The radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through one of the feed connection points 2111 to access the positive pole of the excitation signal, and the zero potential line of the radiation element 21 is electrically connected to the ground terminal connection end 32 of the feed source 30, corresponding to being electrically connected to the ground pole of the corresponding power supply to access the ground pole of the excitation signal, so as to form a closed-loop circuit for the excitation signal.

[0113] Furthermore, in this feeding structure of the transmitting and receiving co - element in - phase - opposite microwave detection module of this embodiment of the present invention, when the feed source 30 is electrically connected to the positive - pole connection end 31 and the ground - pole connection end 32 respectively and is powered by being connected to the positive pole and the ground pole of the corresponding power supply, the reference ground 10 is electrically connected to the ground pole of the corresponding power supply, and the radiating element 21 is electrically connected to the ground pole of the corresponding power supply in a state of being electrically connected to the reference ground 10 along the zero - potential line and accesses the ground pole of the excitation signal. Specifically, an electrical connection relationship between the radiating element 21 along the zero - potential line and the reference ground 10 is formed through a metallized via structure and process at the physical center point of the radiating element 21.

[0114] Further referring to FIGS. Figure 5A and 5B shown, in the state of the corresponding - point feeding (probe feeding) structure at the electrical feeding point 211, based on the shape setting of the radiating element 21, different deformation embodiments of the transmitting and receiving co - element in - phase - opposite microwave detection module corresponding to the embodiments Figure 2 shown are respectively illustrated.

[0115] Corresponding to Figure 5A , in this deformation embodiment of the present invention, the radiating element 21 is set as a circular sheet - shaped conductive layer, then the physical center point of the radiating element 21 is located at the center of the circular sheet - shaped conductive layer. Corresponding to Figure 5B , in this deformation embodiment of the present invention, both sides of the radiating element 21 located on the zero - potential line are recessed in the direction towards the physical center point of the radiating element 21, so as to maintain the radiating element 21 having an appropriate perimeter to ensure the gain of the transmitting and receiving co - element in - phase - opposite microwave detection module while being conducive to reducing the size of the transmitting and receiving co - element in - phase - opposite microwave detection module in a way of reducing the size of the radiating element 21 to adapt to the current miniaturization trend.

[0116] It can be understood that in some embodiments of the present invention, the radiating element 21 can also be implemented as other symmetric - shaped sheet - shaped conductive layers, such as oval, or a shape with chamfers at the four corners of a rectangle on the basis of a rectangle, and the present invention does not limit this.

[0117] Further referring to FIGS. Figures 6A to 6D shown, on the basis that the number of the radiating elements 21 is one, based on the feeding structure corresponding to the electrical feeding point 211, different deformation embodiments of the transmitting and receiving co - element in - phase - opposite microwave detection module corresponding to the embodiments Figure 2 shown are respectively illustrated.

[0118] Corresponding to Figure 6A, In this variant embodiment of the present invention, the radiation element 21 is arranged to access the excitation signal and output the echo signal with a microstrip feeding structure. Specifically, the radiation element 21 accesses the excitation signal via one of the microstrip feed lines 212 and outputs the echo signal via another of the microstrip feed lines 212. Taking the points on the radiation element 21 electrically connected to the microstrip feed lines 212 as the corresponding electrical feeding points 211, based on the position relationship that the physical center point of the radiation element 21 is on the line connecting the two electrical feeding points 211 and is located between the two electrical feeding points 211 on the line connecting the two electrical feeding points 211, the radiation element 21 and the two microstrip feed lines 212 are arranged to satisfy: the line connecting the two points on the radiation element 21 electrically connected to the two microstrip feed lines 212 passes through the physical center point of the radiation element 21.

[0119] Therefore, to adjust the position of the corresponding electrical feeding point 211 to meet the corresponding impedance matching and / or adjust the amplitude requirement of the echo signal, the radiation element 21 is allowed to be hollowed out along the microstrip feed line 212 and the position of the corresponding electrical feeding point 211 is adjusted by extending the microstrip feed line 212 in the direction towards the physical center point of the radiation element 21.

[0120] Corresponding to Figure 6B , In this variant embodiment of the present invention, the radiation element 21 is combined with a point feeding (probe feeding) structure and a microstrip feeding structure to respectively access the excitation signal and output the echo signal. For example, the excitation signal is accessed via a point feeding (probe feeding) structure at one of the feeding connection points 2111 and the echo signal is output via a microstrip feed line 212 with a microstrip feeding structure; or the excitation signal is accessed via a microstrip feed line 212 with a microstrip feeding structure and the echo signal is output via a point feeding (probe feeding) structure at one of the feeding connection points 2111. The present invention does not limit this.

[0121] Corresponding to Figure 6C, in this variant embodiment of the present invention, the radiating element 21 is arranged to access the excitation signal and output the echo signal in an edge-fed structure. Specifically, the radiating element 21 accesses the excitation signal through one of the edge feed lines 213 and outputs the echo signal through the other edge feed line 213, where the edge feed line 213 is a microstrip line adjacent to and parallel to the straight edge of the radiating element 21. That is to say, when the radiating element 21 is arranged to access the excitation signal and output the echo signal in an edge-fed structure, the corresponding edge of the radiating element 21 is limited to a straight edge. Taking the midpoint of the edge feed line 213, which is set as a microstrip line, as the corresponding electrical feeding point 211, then based on the position relationship that the physical center point of the radiating element 21 is located on the line connecting the two electrical feeding points 211 and is located between the two electrical feeding points 211 on the line connecting the two electrical feeding points 211, the radiating element 21 and the two edge feed lines 213 are arranged to satisfy: the line connecting the midpoint of one edge feed line 213 and the midpoint of the other edge feed line 213 passes through the physical center point of the radiating element 21.

[0122] It is worth mentioning that in the state where the radiating element 21 is arranged to access the excitation signal or output the echo signal in an edge-fed structure, the electrical equivalent feeding point of the radiating element 21 is electrically equivalent to be located at the midpoint of the edge feed line 213, which is set as a microstrip line. That is, the electrical connection relationship and position description of the electrical feeding point 211 are the limitations of the electrical connection relationship of the physical edge feed line 213 and the midpoint position of the edge feed line 213. The specific positions where the edge feed line 213 accesses the excitation signal and outputs the echo signal are not limited and do not affect the limitation of the position of the electrical feeding point 211. Therefore, the circuit design of the corresponding transceiver co-element inverting microwave detection module is flexible and diverse and can adapt to different layout requirements.

[0123] Corresponding to Figure 6D , in this variant embodiment of the present invention, the radiating element 21 is combined with a point-feed (probe-feed) structure and an edge-feed structure to respectively access the excitation signal and output the echo signal. For example, access the excitation signal at one of the feeding connection points 2111 in a point-feed (probe-feed) structure and output the echo signal through one of the edge feed lines 213 in an edge-feed structure; or access the excitation signal through one of the edge feed lines 213 in an edge-feed structure and output the echo signal at one of the feeding connection points 2111 in a point-feed (probe-feed) structure. The present invention does not limit this.

[0124] It can be understood that, in some embodiments of the present invention, the radiation elements 21 are combined to access the excitation signal and output the echo signal in a microstrip feeding structure and an edge feeding structure respectively. For example, the excitation signal is accessed through a microstrip feeding line 212 in the microstrip feeding structure and the echo signal is output through an edge feeding line 213 in the edge feeding structure; or the excitation signal is accessed through an edge feeding line 213 in the edge feeding structure and the echo signal is output through a microstrip feeding line 212 in the microstrip feeding structure. The present invention does not limit this.

[0125] Further referring to the accompanying drawings of the specification of the present invention Figures 7A to 9G as shown, the feeding structures corresponding to the electrical feeding points 211 and the number settings of the radiation elements 21 are respectively illustrated for the transmit-receive same-element in-phase microwave detection modules in different embodiments.

[0126] Specifically, corresponding to Figures 7A to 7D , where the number of the radiation elements 21 of the transmit-receive same-element in-phase microwave detection module is at least two, and each of the radiation elements 21 is adjacently arranged in a state where the zero-potential lines coincide.

[0127] Furthermore, corresponding to Figure 7A , the number of the radiation elements 21 is two. Taking the direction from the electrical feeding point 211 corresponding to accessing the excitation signal to the physical center point of the radiation element 21 as the polarization direction of the radiation element 21, when the two radiation elements 21 are adjacently arranged in a state where the zero-potential lines coincide, when the two radiation elements 21 are arranged on the same side of the zero-potential line and the electrical feeding point 211 accesses the excitation signal, the two radiation elements 21 have the same polarization direction, so as to improve its gain while maintaining the planar beam angle of the transmit-receive same-element in-phase microwave detection module in the polarization direction. That is, when the two radiation elements 21 are adjacently arranged in a state where the zero-potential lines coincide and the polarization directions are the same, the planar beam angle of the transmit-receive same-element in-phase microwave detection module in the polarization direction can be maintained and the same-element in-phase microwave detection module is improved at the same time.

[0128] Furthermore, when the two radiation elements 21 are adjacently arranged in a state where the zero-potential lines coincide, when the two radiation elements 21 are arranged on different sides of the zero-potential line and the electrical feeding point 211 accesses the excitation signal, the two radiation elements 21 have opposite polarization directions, and the planar beam angle of the corresponding transmit-receive same-element in-phase microwave detection module in the polarization direction can be expanded to adapt to the corresponding detection requirements. That is, when the two radiation elements 21 are adjacently arranged in a state where the zero-potential lines coincide and the polarization directions are opposite, the planar beam angle of the transmit-receive same-element in-phase microwave detection module in the polarization direction can be expanded.

[0129] Specifically, in Figure 7A the transceiver co - element in - phase - inverse microwave detection module corresponding to the embodiment, the electrical feeding point 211 is arranged in a point - feeding structure. Specifically, each of the radiation elements 21 is respectively connected to the excitation signal through a feeding connection point 2111 and outputs the echo signal through a feeding connection point 2111.

[0130] Corresponding to Figures 7B to 7D , where the electrical feeding points 211 of each of the radiation elements 21 on the same side of the zero - potential line are electrically connected. Then, the polarization direction of the radiation element 21 is the direction from the electrical feeding point 211 connected to the excitation signal to the physical center point of the radiation element 21. Each of the radiation elements 21 is adjacently arranged in a state where the zero - potential lines coincide and have the same polarization direction, so as to improve its gain while maintaining the planar beam angle in the polarization direction of the transceiver co - element in - phase - inverse microwave detection module, thereby facilitating the improvement of the detection sensitivity of the transceiver co - element in - phase - inverse microwave detection module.

[0131] Specifically, corresponding to Figure 7B and Figure 7C , the number of the radiation elements 21 is two, that is, the two radiation elements 21 are adjacently arranged in a state where the zero - potential lines coincide and have the same polarization direction. Thus, under the limitation of the same number of radiation elements 21, the transceiver co - element in - phase - inverse microwave detection module has higher gain and smaller volume compared with the existing microwave detection module with transceiver separation design.

[0132] Corresponding to Figure 7B , each of the radiation elements 21 is arranged to access the excitation signal and output the echo signal in a microstrip - feeding structure. Specifically, each of the radiation elements 21 is respectively connected to the excitation signal through a microstrip feeding line 212 and outputs the echo signal through another microstrip feeding line 212. And the microstrip feeding lines 212 corresponding to each of the radiation elements 21 connected to the excitation signal are electrically connected, and the microstrip feeding lines 212 corresponding to each of the radiation elements 21 outputting the echo signal are electrically connected. Thus, in the state where the zero - potential lines of the two radiation elements 21 coincide, a state is formed where the two radiation elements 21 are adjacently arranged with the same polarization direction.

[0133] Corresponding to Figure 7C, each of the radiation elements 21 is arranged to access the excitation signal and output the echo signal in an edge-feed structure. Specifically, each of the radiation elements 21 accesses the excitation signal through one of the edge feed lines 213 and outputs the echo signal through the other edge feed line 213. Moreover, the edge feed lines 213 corresponding to the access of the excitation signal of each of the radiation elements 21 are electrically connected, and the edge feed lines 213 corresponding to the output of the echo signal of each of the radiation elements 21 are electrically connected. In this way, in the state where the zero-potential lines of the two radiation elements 21 coincide, the two radiation elements 21 are arranged adjacent to each other in the same polarization direction.

[0134] Corresponding to Figure 7D , the number of the radiation elements 21 is five. Each of the radiation elements 21 is arranged to access the excitation signal and output the echo signal in a microstrip feed structure. Specifically, each of the radiation elements 21 accesses the excitation signal through one of the microstrip feed lines 212 and outputs the echo signal through the other microstrip feed line 212. Among them, the microstrip feed lines 212 corresponding to the access of the excitation signal of each of the radiation elements 21 are electrically connected, and the microstrip feed lines 212 corresponding to the output of the echo signal of each of the radiation elements 21 are electrically connected. In this way, it is beneficial to simplify the feed line design of the radiation source 20, and in the state where the zero-potential lines of the two radiation elements 21 coincide, the two radiation elements 21 are arranged adjacent to each other in the same polarization direction.

[0135] It is worth mentioning that in the state where the microstrip feed lines 212 corresponding to the access of the excitation signal of each of the radiation elements 21 are electrically connected, and the microstrip feed lines 212 corresponding to the output of the echo signal of each of the radiation elements 21 are electrically connected, the microstrip feed lines 212 corresponding to the access of the excitation signal of each of the radiation elements 21 are preferably set to be of equal length, and the microstrip feed lines 212 corresponding to the output of the echo signal of each of the radiation elements 21 are preferably set to be of equal length. In this way, it is beneficial to realize the excitation signals in-phase accessed by each of the radiation elements 21 and the echo signals in-phase output, so as to ensure the stability of the transceiver co-element in-phase reverse microwave detection module and improve the accuracy of the transceiver co-element in-phase reverse microwave detection module while realizing the reverse phase of the excitation signal and the echo signal.

[0136] Corresponding to Figures 8A to 8C , where the number of the radiation elements 21 of the transceiver co-element in-phase reverse microwave detection module is two. The two radiation elements 21 are arranged adjacent to each other in a state where the two zero-potential lines are perpendicular to each other, that is, the two radiation elements 21 have polarization directions in an orthogonal state. In this way, under the limitation of the same number of radiation elements 21, the transceiver co-element in-phase reverse microwave detection module has higher gain and smaller volume compared with the existing microwave detection module with separate transceiver design.

[0137] Corresponding to Figure 8A , each of the radiating elements 21 is arranged to access the excitation signal and output the echo signal in a microstrip feeding structure. Specifically, each of the radiating elements 21 accesses the excitation signal through one of the microstrip feed lines 212 and outputs the echo signal through another of the microstrip feed lines 212. Moreover, the microstrip feed lines 212 corresponding to access the excitation signal of each of the radiating elements 21 are electrically connected, and the microstrip feed lines 212 corresponding to output the echo signal of each of the radiating elements 21 are electrically connected. Thus, in a state where the zero potential lines of the two radiating elements 21 are perpendicular, a state is formed in which the two radiating elements 21 are adjacently arranged in orthogonal polarization directions.

[0138] Corresponding to Figure 8B , each of the radiating elements 21 is arranged to access the excitation signal and output the echo signal in an edge feeding structure. Specifically, each of the radiating elements 21 accesses the excitation signal through one of the edge feed lines 213 and outputs the echo signal through another of the edge feed lines 213. Moreover, the edge feed lines 213 corresponding to access the excitation signal of each of the radiating elements 21 are electrically connected, and the edge feed lines 213 corresponding to output the echo signal of each of the radiating elements 21 are electrically connected. Thus, in a state where the zero potential lines of the two radiating elements 21 are perpendicular, a state is formed in which the two radiating elements 21 are adjacently arranged in orthogonal polarization directions.

[0139] Corresponding to Figure 8C , each of the radiating elements 21 is arranged to access the excitation signal and output the echo signal in a point feeding structure. Specifically, each of the radiating elements 21 accesses the excitation signal through one of the feeding connection points 2111 and outputs the echo signal through another of the electrical feeding points 2111. Thus, in a state where the zero potential lines of the two radiating elements 21 are perpendicular, a state is formed in which the two radiating elements 21 are adjacently arranged in orthogonal polarization directions.

[0140] Corresponding to Figures 9A to 9G , where the number of the radiating elements 21 of the transceiver same - element and inverse - phase microwave detection module is at least two, and each of the radiating elements 21 is adjacently arranged in a state where the connection lines of the two electrical feeding points 211 of each of the radiating elements 21 coincide, that is, each of the radiating elements 21 is adjacently arranged in a state where the electrical feeding points 211 are located on the same straight line.

[0141] Corresponding to Figure 9A, the number of the radiation elements 21 is two. The polarization direction of the radiation element 21 is the direction from the electrical feeding point 211 corresponding to the access of the excitation signal to the physical center point of the radiation element 21. When the two radiation elements 21 are adjacently arranged with the connection lines of the electrical feeding points 211 coinciding, when the two radiation elements 21 are arranged with the same polarization direction, the planar beam angle of the transceiver co-element in-phase microwave detection module in the direction of the connection line of the electrical feeding points 211 can be reduced and the gain of the transceiver co-element in-phase microwave detection module can be increased at the same time. That is, when the two radiation elements 21 are adjacently arranged with the connection lines of the electrical feeding points 211 coinciding and the polarization directions being the same, the planar beam angle of the transceiver co-element in-phase microwave detection module in the direction of the connection line of the electrical feeding points 211 can be reduced to adapt to the corresponding detection requirements and the gain of the transceiver co-element in-phase microwave detection module is increased at the same time.

[0142] Further, when the two radiation elements 21 are adjacently arranged with the connection lines of the electrical feeding points 211 coinciding, when the two radiation elements 21 are arranged with opposite polarization directions, the planar beam angle of the corresponding transceiver co-element in-phase microwave detection module in the direction of the connection line of the electrical feeding points 211 can be expanded to adapt to the corresponding detection requirements. That is, when the two radiation elements 21 are adjacently arranged with the connection lines of the electrical feeding points 211 coinciding and the polarization directions being opposite, the planar beam angle of the transceiver co-element in-phase microwave detection module in the direction of the connection line of the electrical feeding points 211 can be expanded.

[0143] Specifically, in Figure 9A the transceiver co-element in-phase microwave detection module of the corresponding embodiment, the electrical feeding point 211 is arranged in a point feeding structure, specifically corresponding to each radiation element 21 accessing the excitation signal through a feeding connection point 2111 and outputting the echo signal through a feeding connection point 2111.

[0144] Corresponding to Figures 9B to 9F, in a state where the connection lines of the two electrical feeding points 211 of each radiation element 21 coincide, two adjacent electrical feeding points 211 on two adjacent radiation elements 21 that are adjacent to each other are electrically connected, that is, two adjacent electrical feeding points 211 that are located on different radiation elements 21 and are adjacent to each other are electrically connected. Corresponding to each radiation element 21, in the same polarization direction, the radiation elements 21 are adjacently arranged with the electrical feeding points 211 located on the same straight line. In this way, while increasing the gain of the transceiver co-element in-phase microwave detection module, the planar beam angle of the transceiver co-element in-phase microwave detection module in the direction of the connection line of each electrical feeding point 211 can be reduced. And under the limitation of the same number of radiation elements 21, the transceiver co-element in-phase microwave detection module has a smaller volume compared with the existing microwave detection module with separate transceiver design.

[0145] Specifically, two adjacent electrical feeding points 211 on two adjacent radiation elements 21 are arranged in a microstrip feeding structure. Corresponding to the state where two adjacent electrical feeding points 211 on two adjacent radiation elements 21 are electrically connected, two adjacent radiation elements 21 are electrically connected by a microstrip feeding line 212, and the points on each radiation element 21 that are electrically connected to the microstrip feeding line 212 are equivalently formed as the electrical feeding points 211. In this way, in a state where the connection lines of the two electrical feeding points 211 of each radiation element 21 coincide, when the physical feeding structures corresponding to the two electrical feeding points 211 at both ends of the connection line of each electrical feeding point 211 are respectively connected to the excitation signal and output the echo signal, the electrical feeding points 211 on the same side of each radiation element 21 correspondingly access the excitation signal or output the echo signal.

[0146] That is to say, in a state where two adjacent radiation elements 21 are electrically connected by a microstrip feeding line 212, the microstrip feeding line 212 mixes and transmits the excitation signal and the echo signal.

[0147] Specifically, corresponding to Figures 9B to 9D , the number of radiation elements 21 of the transceiver co-element in-phase microwave detection module is two. Among them, corresponding to Figure 9B , two electrical feeding points 211 at both ends of the connection line of each electrical feeding point 211 are implemented in a point feeding structure, and are specifically implemented as a feeding connection point 2111; corresponding to Figure 9C , two electrical feeding points 211 at both ends of the connection line of each electrical feeding point 211 are implemented in a side feeding structure, and a side feeding line 213 that is adjacent to and parallel to the straight side of the corresponding radiation element 21 is respectively used to access the excitation signal and output the echo signal; corresponding to Figure 9D, two of the electrical feeding points 211 at both ends of the connection line of each of the electrical feeding points 211 are implemented in a microstrip feeding structure, and are respectively connected to the excitation signal and output the echo signal through a microstrip feeding line 212 electrically connected to the corresponding radiation element 21.

[0148] Corresponding to Figure 9E and Figure 9F , the number of the radiation elements 21 of the transceiver co-element in-phase microwave detection module is four, and corresponding to Figure 9E , two of the electrical feeding points 211 at both ends of the connection line of each of the electrical feeding points 211 are implemented in a microstrip feeding structure, and are respectively connected to the excitation signal and output the echo signal through a microstrip feeding line 212 electrically connected to the corresponding radiation element 21; corresponding to Figure 9F , two of the electrical feeding points 211 at both ends of the connection line of each of the electrical feeding points 211 are implemented in a side feeding structure, and are respectively connected to the excitation signal and output the echo signal through a side feeding line 213 adjacent to and parallel to the straight side of the corresponding radiation element 21.

[0149] Corresponding to Figure 9G , in the state where the connection lines of the two electrical feeding points 211 of each of the radiation elements 21 coincide, two of the electrical feeding points 211 of each of the radiation elements 21 are implemented in a microstrip feeding structure, and are respectively connected to the excitation signal and output the echo signal through a microstrip feeding line 212 electrically connected to the radiation element 21. Among them, in the direction of the connection line of the two electrical feeding points 211 of each of the radiation elements 21, the electrical feeding points 211 on the same side of each of the radiation elements 21 are electrically connected. Specifically, the microstrip feeding lines 212 corresponding to the access of the excitation signal of each of the radiation elements 21 are electrically connected, and the microstrip feeding lines 212 corresponding to the output of the echo signal of each of the radiation elements 21 are electrically connected. In this way, while forming the radiation elements 21 in the same polarization direction and being arranged adjacent to each other in the state where the electrical feeding points 211 are on the same straight line, because the connection structure in which two adjacent electrical feeding points 211 on two adjacent radiation elements 21 are electrically connected is avoided, the mixed transmission of the excitation signal and the echo signal on the microstrip feeding line 212 can be avoided, which is beneficial to further improving the anti-interference performance of the transceiver co-element in-phase microwave detection module.

[0150] It is worth mentioning that in the state where the microstrip feed lines 212 corresponding to each of the radiation elements 21 for accessing the excitation signal are electrically connected, and the microstrip feed lines 212 corresponding to each of the radiation elements 21 for outputting the echo signal are electrically connected, the microstrip feed lines 212 corresponding to each of the radiation elements 21 for accessing the excitation signal are preferably set to be of equal length, and the microstrip feed lines 212 corresponding to each of the radiation elements 21 for outputting the echo signal are preferably set to be of equal length. In this way, it is beneficial to realize the excitation signal accessed by each of the radiation elements 21 in phase and the echo signal output in phase, so as to ensure the stability of the transceiver co-element inverting microwave detection module and improve the accuracy of the transceiver co-element inverting microwave detection module while realizing the inversion of the excitation signal and the echo signal.

[0151] It can be understood that based on the principle of reciprocity of transceiver, in some embodiments of the present invention, the electrical feeding point 211 corresponding to the output of the echo signal is simultaneously set to access the excitation signal that meets the corresponding phase requirements. That is to say, in the above description of the present invention, the description of respectively accessing the excitation signal and outputting the echo signal for the physical feeding structures corresponding to the two electrical feeding points 211 of each of the radiation elements 21 is open. In the state where the physical feeding structure corresponding to one of the electrical feeding points 211 of the radiation element 21 accesses the excitation signal and the physical feeding structure corresponding to the other electrical feeding point outputs the echo signal, the physical feeding structure corresponding to the electrical feeding point 211 accessing the excitation signal can simultaneously be used to output the echo signal, and / or the physical feeding structure corresponding to the electrical feeding point 211 outputting the echo signal can simultaneously be used to access the excitation signal. The present invention does not limit this.

[0152] That is to say, based on the principle of reciprocity between transmission and reception, the electrical feeding point 211 corresponding to the access of the excitation signal and the electrical feeding point 211 corresponding to the transmission of the echo signal can be reciprocal, and the electrical feeding point 211 corresponding to the transmission of the echo signal on the radiating element 21 allows the excitation signal to be simultaneously accessed. That is, on the basis that one electrical feeding point 211 of the radiating element 21 corresponds to the access of the excitation signal and the other electrical feeding point 211 corresponds to the transmission of the echo signal, the two electrical feeding points 211 of the radiating element 211 are allowed to be set to simultaneously correspond to the access of the excitation signal or the transmission of the echo signal, so as to form an in-phase feeding of the radiating element 21 to improve the radiation efficiency or reception efficiency of the radiating element, correspondingly enhancing the detection sensitivity of the in-phase microwave detection module of the same element. For example, by electrically connecting the physical feeding structures corresponding to the two electrical feeding points 211 of the radiating element 21 with a phase-shifting line, when the excitation signal is accessed to the physical feeding structure corresponding to one electrical feeding point 211 of the radiating element 21, the excitation signal is phase-shifted by the phase-shifting line and then the radiating element is excited in the opposite phase at the physical feeding structure corresponding to the other electrical feeding point 211, thereby forming an in-phase feeding of the radiating element 21.

[0153] It is worth mentioning that to adapt to the detection requirements in different environments, the number and arrangement of the radiating elements 21 are diverse. In the above embodiments of the present invention, the description of the corresponding number and arrangement of the radiating elements 21 of the in-phase microwave detection module of the same element is only for illustration and does not limit the present invention. Based on the in-phase setting of the access of the excitation signal and the output of the echo signal, the object of the present invention has been completely and effectively achieved. Without departing from the principle, the embodiments of the present invention can have any deformation or modification.

[0154] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0155] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and without departing from the said principles, any variations or modifications can be made to the embodiments of the present invention.

Claims

1. A transceiver co - element in - phase - inversion microwave detection module, characterized in that, it includes: A reference ground, wherein the reference ground is set as a sheet - like conductive layer; At least one radiation element, wherein each radiation element is set as a sheet - like conductive layer and is respectively spaced from the reference ground with the planes of the two sheet - like conductive layers tending to be parallel. Each radiation element has an electrical feeding point for accessing an excitation signal and another electrical feeding point for outputting an echo signal. The physical center point of the radiation element is located on the line connecting the two electrical feeding points and between the two electrical feeding points on the line connecting the two electrical feeding points, so that in the state where the radiation element is accessed with the excitation signal and is excited and fed, the echo signal output from the radiation element can be in - phase - inverted; And A feed source, wherein the feed source has a positive - pole connection end, a ground - pole connection end, and a signal end, and is set to be suitable for being powered when the positive - pole connection end and the ground - pole connection end are electrically connected to the positive pole and the ground pole of the corresponding power supply. When the feed source is set in the powered state, the excitation signal is generated between the signal end and the positive - pole connection end or the ground - pole connection end. The radiation element is electrically connected to the signal end with the physical feeding structure corresponding to one of the electrical feeding points, and the excitation signal is accessed at this electrical feeding point.

2. The transceiver co - element in - phase - inversion microwave detection module according to claim 1, wherein the feed source is set to generate the excitation signal between the signal end and the positive - pole connection end in the powered state. The straight line passing through the physical center point of the radiation element and perpendicular to the line connecting the two electrical feeding points on each radiation element is the zero - potential line of the radiation element. Each radiation element is set to be electrically connected to the positive - pole connection end of the feed source at the corresponding zero - potential line in the fed state.

3. The transceiver co - element in - phase - inversion microwave detection module according to claim 2, wherein each radiation element is electrically connected to the reference ground at the corresponding zero - potential line. In the state where the radiation element is fed, the reference ground is electrically connected to the positive - pole connection end of the feed source, so as to correspondingly form the state where each radiation element is electrically connected to the positive - pole connection end of the feed source at the corresponding zero - potential line.

4. The transceiver co - element in - phase - inversion microwave detection module according to claim 1, wherein the feed source is set to generate the excitation signal between the signal end and the ground - pole connection end in the powered state. The straight line passing through the physical center point of the radiation element and perpendicular to the line connecting the two electrical feeding points on each radiation element is the zero - potential line of the radiation element. Each radiation element is set to be electrically connected to the ground - pole connection end of the feed source at the corresponding zero - potential line in the fed state.

5. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 4, wherein each of the radiating elements is electrically connected to the reference ground at the corresponding zero - potential line, and in the state where the radiating element is fed, the reference ground is electrically connected to the ground - pole connection end of the feed source, so as to correspondingly form a state where each of the radiating elements is electrically connected to the ground - pole connection end of the feed source at the corresponding zero - potential line.

6. The transmitting and receiving co - element in - phase - opposite microwave detection module according to any one of claims 1 to 5, wherein the number of the radiating elements is one.

7. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 6, wherein the two electrical feeding points of the radiating element are arranged symmetrically with respect to the physical center point of the radiating element.

8. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 6, wherein a feeding connection point on the radiating element that deviates from the physical center point of the radiating element is electrically connected to the signal end of the feed source, and then the electrical feeding point of the radiating element corresponding to accessing the excitation signal takes the feeding connection point for accessing the excitation signal.

9. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 8, wherein another feeding connection point on the radiating element that deviates from the physical center point of the radiating element outputs the echo signal, and then the electrical feeding point of the radiating element corresponding to outputting the echo signal takes the feeding connection point for outputting the echo signal.

10. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 9, wherein the two feeding connection points are symmetric with respect to the physical center point of the radiating element.

11. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 6, wherein two feeding connection points on the radiating element that deviate from the physical center point of the radiating element are simultaneously electrically connected to the signal end of the feed source, and the positional relationship between the two feeding connection points is set such that the mid - line of the connection line between the two feeding connection points passes through the physical center point of the radiating element, and then the electrical feeding point of the radiating element corresponding to accessing the excitation signal takes the mid - point of the connection line between the two feeding connection points.

12. The transmitting and receiving co - element in - phase - opposite microwave detection module according to claim 11, wherein another feeding connection point on the radiating element that deviates from the physical center point of the radiating element outputs the echo signal, and then the electrical feeding point of the radiating element corresponding to outputting the echo signal takes the feeding connection point for outputting the echo signal, and the positional relationship of the corresponding three feeding connection points satisfies that the mid - line of the connection line between the two feeding connection points for accessing the excitation signal passes through the physical center point of the radiating element and the other feeding connection point for outputting the echo signal.

13. The transceiver co-element in-phase microwave detection module according to claim 11, wherein the radiating element is arranged such that the other two feed connection points on the radiating element that deviate from the physical center point of the radiating element simultaneously output the echo signal, and the positional relationship of the other two feed connection points for outputting the echo signal is set such that the midline of the line connecting the two feed connection points passes through the physical center point of the radiating element. Then, the electrical feed point of the radiating element corresponding to the output of the echo signal is taken as the midpoint of the line connecting the two feed connection points for outputting the echo signal, and the positional relationship of the four feed connection points satisfies that the midline of the line connecting the two feed connection points for accessing the excitation signal passes through the physical center point of the radiating element and the midpoint of the line connecting the other two feed connection points for outputting the echo signal.

14. The transceiver co-element in-phase microwave detection module according to claim 6, wherein the radiating element is arranged to be electrically connected to the signal end of the feed source through a microstrip feed line electrically connected to the radiating element. Then, the electrical feed point of the radiating element corresponding to the access of the excitation signal is taken as the point on the radiating element that is electrically connected to the microstrip feed line.

15. The transceiver co-element in-phase microwave detection module according to claim 6, wherein a radiating element is arranged to access the excitation signal through a side feed line, and the corresponding side feed line is electrically connected to the signal end of the feed source. The side feed line is a microstrip line adjacent to and parallel to the straight side of the radiating element. Then, the electrical feed point of the radiating element corresponding to the access of the excitation signal is taken as the midpoint of the side feed line arranged as a microstrip line.

16. The transceiver co-element in-phase microwave detection module according to claim 6, wherein the radiating element is arranged as a rectangular sheet-shaped conductive layer.

17. The transceiver co-element in-phase microwave detection module according to claim 6, wherein the radiating element is arranged as a circular sheet-shaped conductive layer.

18. The transceiver co-element in-phase microwave detection module according to claim 6, wherein the straight line passing through the physical center point of the radiating element and perpendicular to the line connecting the two electrical feed points on the radiating element is taken as the zero potential line of the radiating element, and the two sides of the radiating element located on the zero potential line are arranged to be concave inward in the direction towards the physical center point of the radiating element.

19. The transceiver co-element in-phase microwave detection module according to any one of claims 1 to 5, wherein the number of radiating elements of the transceiver co-element in-phase microwave detection module is at least two. The straight line passing through the physical center point of each radiating element and perpendicular to the line connecting the two electrical feed points is taken as the zero potential line of the radiating element, and each radiating element is arranged adjacent to each other with the zero potential lines coinciding.

20. The transmit-receive co-element in-phase microwave detection module according to claim 19, wherein the polarization direction of the radiation element is the direction from the electrical feeding point corresponding to the access of the excitation signal to the physical center point of the radiation element, and the adjacent two radiation elements are arranged with opposite polarization directions.

21. The transmit-receive co-element in-phase microwave detection module according to claim 20, wherein each of the radiation elements is respectively connected to the excitation signal through a feeding connection point and outputs the echo signal through another feeding connection point, and the feeding connection points corresponding to the access of the excitation signal of the adjacent two radiation elements are located on different sides of the zero potential line.

22. The transmit-receive co-element in-phase microwave detection module according to claim 19, wherein the polarization direction of the radiation element is the direction from the electrical feeding point corresponding to the access of the excitation signal to the physical center point of the radiation element, and each of the radiation elements is arranged with the same polarization direction.

23. The transmit-receive co-element in-phase microwave detection module according to claim 22, wherein each of the radiation elements is respectively connected to the excitation signal through a feeding connection point and outputs the echo signal through another feeding connection point, and the feeding connection points corresponding to the access of the excitation signal of each of the radiation elements are located on the same side of the zero potential line as the corresponding radiation element.

24. The transmit-receive co-element in-phase microwave detection module according to claim 22, wherein each of the radiation elements is respectively connected to the excitation signal through a microstrip feeding line and outputs the echo signal through another microstrip feeding line, and the microstrip feeding lines corresponding to the access of the excitation signal of each of the radiation elements are electrically connected, and the microstrip feeding lines corresponding to the output of the echo signal of each of the radiation elements are electrically connected.

25. The transmit-receive co-element in-phase microwave detection module according to claim 24, wherein the microstrip feeding lines corresponding to the access of the excitation signal of each of the radiation elements are set to be of equal length, and the microstrip feeding lines corresponding to the output of the echo signal of each of the radiation elements are set to be of equal length.

26. The transmit-receive co-element in-phase microwave detection module according to claim 25, wherein the radiation element is hollowed out along the microstrip feeding line.

27. The transmit-receive co-element in-phase microwave detection module according to claim 25, wherein the point on the radiation element electrically connected to the microstrip feeding line is taken as the corresponding electrical feeding point, and the two electrical feeding points of each of the radiation elements are arranged symmetrically with respect to the physical center point of the radiation element.

28. The transmit-receive co-element in-phase microwave detection module according to claim 27, wherein the number of the radiation elements is two.

29. The transmit-receive co-element in-phase microwave detection module according to claim 27, wherein the number of the radiation elements is five.

30. The same-element transceiver with inverse-phase microwave detection module according to claim 22, wherein each of the radiating elements is connected to the excitation signal through a side feeder and outputs the echo signal through the other side feeder. The side feeder is a microstrip line adjacent to and parallel to the straight edge of the radiating element. The midpoint of the side feeder set as the microstrip line is taken as the corresponding electrical feeding point, and the side feeders corresponding to each radiating element for connecting the excitation signal are electrically connected, and the side feeders corresponding to each radiating element for outputting the echo signal are electrically connected.

31. The same-element transceiver with inverse-phase microwave detection module according to any one of claims 1 to 5, wherein the number of the radiating elements is two. A straight line passing through the physical center point of each radiating element and perpendicular to the connection line of the two electrical feeding points is taken as the zero-potential line of the radiating element, and the two radiating elements are arranged adjacent to each other with the two zero-potential lines perpendicular to each other.

32. The same-element transceiver with inverse-phase microwave detection module according to claim 31, wherein each of the radiating elements is connected to the excitation signal through a microstrip feeder and outputs the echo signal through another microstrip feeder. The point on the radiating element electrically connected to the microstrip feeder is taken as the corresponding electrical feeding point, and the microstrip feeders corresponding to the two radiating elements for connecting the excitation signal are electrically connected, and the microstrip feeders corresponding to the two radiating elements for outputting the echo signal are electrically connected.

33. The same-element transceiver with inverse-phase microwave detection module according to claim 31, wherein each of the radiating elements is connected to the excitation signal through a side feeder and outputs the echo signal through the other side feeder. The side feeder is a microstrip line adjacent to and parallel to the straight edge of the radiating element. The midpoint of the side feeder set as the microstrip line is taken as the corresponding electrical feeding point, and the side feeders corresponding to the two radiating elements for connecting the excitation signal are electrically connected, and the side feeders corresponding to the two radiating elements for outputting the echo signal are electrically connected.

34. The same-element transceiver with inverse-phase microwave detection module according to claim 31, wherein each of the radiating elements is connected to the excitation signal through a feeding connection point and outputs the echo signal through another electrical feeding point. The feeding connection point is taken as the corresponding electrical feeding point.

35. The same-element transceiver with inverse-phase microwave detection module according to any one of claims 1 to 5, wherein the number of the radiating elements of the same-element transceiver with inverse-phase microwave detection module is at least two. Each of the radiating elements is arranged adjacent to each other with the connection lines of the two electrical feeding points of each radiating element coinciding, that is, the electrical feeding points of each radiating element are located on the same straight line.

36. The same-element transceiver with inverse-phase microwave detection module according to claim 35, wherein the direction from the electrical feeding point corresponding to the access of the excitation signal to the physical center point of the radiating element is taken as the polarization direction of the radiating element, and the two adjacent radiating elements are arranged with opposite polarization directions.

37. The transmit-receive co-element in-phase microwave detection module according to claim 36, wherein each of the radiation elements is connected to the excitation signal through a feed connection point and outputs the echo signal through another feed connection point.

38. The transmit-receive co-element in-phase microwave detection module according to claim 35, wherein the polarization direction of the radiation element is the direction from the electrical feed point corresponding to the access of the excitation signal to the physical center point of the radiation element, and adjacent two of the radiation elements are arranged to have the same polarization direction.

39. The transmit-receive co-element in-phase microwave detection module according to claim 38, wherein each of the radiation elements is connected to the excitation signal through a feed connection point and outputs the echo signal through another feed connection point.

40. The transmit-receive co-element in-phase microwave detection module according to claim 38, wherein adjacent two of the radiation elements are electrically connected by a microstrip feed line, and the points electrically connected to the microstrip feed line on each of the radiation elements equivalently form the corresponding electrical feed points.

41. The transmit-receive co-element in-phase microwave detection module according to claim 40, wherein the number of the radiation elements is two.

42. The transmit-receive co-element in-phase microwave detection module according to claim 40, wherein the number of the radiation elements is four.

43. The transmit-receive co-element in-phase microwave detection module according to claim 38, wherein each of the radiation elements accesses the excitation signal through a microstrip feed line electrically connected to the radiation element and outputs the echo signal through another microstrip feed line electrically connected to the radiation element, and the point electrically connected to the microstrip feed line on the radiation element is taken as the corresponding electrical feed point, wherein the microstrip feed lines corresponding to the access of the excitation signal of each of the radiation elements are electrically connected, and the microstrip feed lines corresponding to the output of the echo signal of each of the radiation elements are electrically connected.

44. The transmit-receive co-element in-phase microwave detection module according to claim 43, wherein the microstrip feed lines corresponding to the access of the excitation signal of each of the radiation elements are set to be of equal length, and the microstrip feed lines corresponding to the output of the echo signal of each of the radiation elements are set to be of equal length.

45. The transmit-receive co-element in-phase microwave detection module according to claim 44, wherein the number of the radiation elements is four.

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